xmonad: use urxvt as a quake terminal instead of tilda
xmobar: make brightness icon thinner
xmobar: make memory icon thinner
xmobar: change volume icon
xmobar: make cpu icons thinner
xmobar: fix icon sizes
dunst: use DejaVu Sans and solarized light
urxvt: force title to urxvt
xmobar: Use DejaVu Sans
xmobar: add icon for no network state